MessageInput isn´t removed when using footer component

### Describe the bug

When using setFooterComponent() The component is added below the MessageInput.

### Expected behavior

The MessageInput component should not be added when adding a footer component.

### Minimal reproducible example

_No response_

### Add-on Version

2.0.0-Snapshot

### Vaadin Version

24.4.10

### Additional information

_No response_